Optrex Dry Eye Spray is an easy to use spray which you can apply to closed eyes so there is no need for drops! Liposomes in the formulation help to repair the eye's natural moisture barrier. Optrex Dry Eye Spray is clinically proven to provide instant symptomatic relief for up to 4 hours & is safe to use with contact lenses. Optrex Dry Eye Spray effectively treats up to 80% of dry eye cases by restoring the lipid layer of the tear film. Soothing tired, uncomfortable eyes is now so easy you can do it with your eyes closed. Simply close your eyes & spray. Staring at screens for up to 8 hours a day can leave your eyes looking & feeling tired & uncomfortable.